A 320 GHz Octagonal Shorted Annular Ring On-Chip Antenna Array

Zhu, Hua; Li, Xiuping; Xiao, Jun

doi:10.1109/access.2020.2991868

Cited by 25 publications

(10 citation statements)

References 19 publications

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“…Moreover, the peak gain and radiation patterns for all proposed prototypes were measured in an anechoic chamber. First, the gain calculation of the antenna under test (AUT) is performed using the following 30 :

G_{AUT} goodbreak= G_{horn} goodbreak- P_{horn} goodbreak+ P_{AUT}

where G horn is the gain of the reference antenna, in this case a standard horn antenna. P horn and P AUT are the received power at the spectrum analysis of the standard horn (receiver mode), and the AUT, respectively.…”

Section: Prototypes Fabrication and Measurement Resultsmentioning

confidence: 99%

Performance enhancement of an ultra‐wideband antenna using a compact topology optimized single frequency selective surface‐layer as a reflector

Melouki

Hocini

Denidni

2022

Int J RF Mic Comp-Aid Eng

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In this article, an ultra‐wideband (UWB) topology optimized frequency selective surface (FSS) is introduced as a reflecting layer, to maximize the gain and overall performances of an UWB monopole antenna. The single Rogers RO4350B‐based FSS layer is synthesized using an automated system, based on an interface bridged between CST Microwave studio and Matlab, and optimized using a binary genetic algorithm. First, the FSS unit cell foot print needs to be as small as possible, while covering a wider frequency range, and to achieve these performances, the proposed genetic algorithm synthesizing system achieved an FSS unit cell with only 0.1 λ × 0.1 λ at the lower‐end frequency, covering a bandwidth of 2.9–14.5 GHz. Polarization independence is achieved also, due to the four‐folded symmetry imposed on the FSS unit cell. The proposed antenna is designed on a Rogers RO4350B substrate, and backed at a distance of 18.74 mm by an FSS structure. The fabricated prototype shows a bandwidth of 3.1–13.9 GHz, and an excellent maximum peak gain of 9.7 dBi, with an improvement of 3.41 dBi cross the UWB spectrum (from 3.7 to 7.11 dBi), and in good agreement with the simulation results, which made the proposed design a promising candidate for UWB applications requiring high gain, such as ground‐penetrating radar, and microwave radiology imaging (MRI) systems.

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G_{AUT} goodbreak= G_{horn} goodbreak- P_{horn} goodbreak+ P_{AUT}

Section: Prototypes Fabrication and Measurement Resultsmentioning

confidence: 99%

Performance enhancement of an ultra‐wideband antenna using a compact topology optimized single frequency selective surface‐layer as a reflector

Melouki

Hocini

Denidni

2022

Int J RF Mic Comp-Aid Eng

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“…59.2 32 × 20 × 0.818 44 4 × 1 Patch antenna array 32 GHz [259–291] Max. 5.2 – 2.47 × 1.53 × 0.675 45 2 × 1 Octagonal shorted annular ring antenna array 17 GHz [303–320] Max. 4.1 Max.…”

Section: Resultsmentioning

confidence: 99%

High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications

Alibakhshikenari

Virdee

Salekzamankhani

et al. 2021

Sci Rep

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This paper presents the results of a study on developing an effective technique to increase the performance characteristics of antenna arrays for sub-THz integrated circuit applications. This is essential to compensate the limited power available from sub-THz sources. Although conventional array structures can provide a solution to enhance the radiation-gain performance however in the case of small-sized array structures the radiation properties can be adversely affected by mutual coupling that exists between the radiating elements. It is demonstrated here the effectiveness of using SIW technology to suppress surface wave propagations and near field mutual coupling effects. Prototype of 2 × 3 antenna arrays were designed and constructed on a polyimide dielectric substrate with thickness of 125 μm for operation across 0.19–0.20 THz. The dimensions of the array were 20 × 13.5 × 0.125 mm3. Metallization of the antenna was coated with 500 nm layer of Graphene. With the proposed technique the isolation between the radiating elements was improved on average by 22.5 dB compared to a reference array antenna with no SIW isolation. The performance of the array was enhanced by transforming the patch to exhibit metamaterial characteristics. This was achieved by embedding the patch antennas in the array with sub-wavelength slots. Compared to the reference array the metamaterial inspired structure exhibits improvement in isolation, radiation gain and efficiency on average by 28 dB, 6.3 dBi, and 34%, respectively. These results show the viability of proposed approach in developing antenna arrays for application in sub-THz integrated circuits.

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“…The presented antenna array on benzocyclobutene proposes a promising technology for the integration of high RF performance active devices and passive elements for the realization of terahertz monolithic integrated circuits. The feasibilityy of a two-element broadband octagonal shorted annular ring on-chip antenna array with high radiation specifications has been studied in [107]. The octagonal shorted annular ring approach has been utilized to increase the gain and suppress the surface-waves based on 130-nm SiGe BiCMOS.…”

Section: C) Study On Improving the Performance Parameters Of A Mts-based On-chip Antennamentioning

confidence: 99%

A Comprehensive Survey on Antennas On-Chip Based on Metamaterial, Metasurface, and Substrate Integrated Waveguide Principles for Millimeter-Waves and Terahertz Integrated Circuits and Systems

et al. 2022

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Antennas on-chip are a particular type of radiating elements valued for their small footprint. They are most commonly integrated in circuit boards to electromagnetically interface free space, which is necessary for wireless communications. Antennas on-chip radiate and receive electromagnetic (EM) energy as any conventional antennas, but what distinguishes them is their miniaturized size. This means they can be integrated inside electronic devices. Although on-chip antennas have a limited range, they are suitable for cell phones, tablet computers, headsets, global positioning system (GPS) devices, and WiFi and WLAN routers. Typically, on-chip antennas are handicapped by narrow bandwidth (less than 10%) and low radiation efficiency. This survey provides an overview of recent techniques and technologies investigated in the literature, to implement high performance on-chip antennas for millimeterwaves (mmWave) and terahertz (THz) integrated-circuit (IC) applications. The technologies discussed here include metamaterial (MTM), metasurface (MTS), and substrate integrated waveguides (SIW). The antenna designs described here are implemented on various substrate layers such as Silicon, Graphene, Polyimide, and GaAs to facilitate integration on ICs. Some of the antennas described here employ innovative excitation mechanisms, for example comprising opencircuited microstrip-line that is electromagnetically coupled to radiating elements through narrow dielectric slots. This excitation mechanism is shown to suppress surface wave propagation and reduce substrate loss. Other techniques described like SIW are shown to significantly attenuate surface waves and minimise loss. Radiation elements based on the MTM and MTS inspired technologies are shown to extend the effective aperture of the antenna without compromising the antenna's form factor. Moreover, the on-chip antennas designed using the above technologies exhibit significantly improved impedance match, bandwidth, gain and radiation efficiency

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A 320 GHz Octagonal Shorted Annular Ring On-Chip Antenna Array

Cited by 25 publications

References 19 publications

Performance enhancement of an ultra‐wideband antenna using a compact topology optimized single frequency selective surface‐layer as a reflector

Performance enhancement of an ultra‐wideband antenna using a compact topology optimized single frequency selective surface‐layer as a reflector

High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications

A Comprehensive Survey on Antennas On-Chip Based on Metamaterial, Metasurface, and Substrate Integrated Waveguide Principles for Millimeter-Waves and Terahertz Integrated Circuits and Systems

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